3965189249 has 32 divisors (see below), whose sum is σ = 4947271680. Its totient is φ = 3102017472.

The previous prime is 3965189231. The next prime is 3965189257. The reversal of 3965189249 is 9429815693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3965189249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3965189194 and 3965189203.

It is not an unprimeable number, because it can be changed into a prime (3965189209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502952 + ... + 510774.

It is an arithmetic number, because the mean of its divisors is an integer number (154602240).

Almost surely, 2^3965189249 is an apocalyptic number.

It is an amenable number.

3965189249 is a deficient number, since it is larger than the sum of its proper divisors (982082431).

3965189249 is a wasteful number, since it uses less digits than its factorization.

3965189249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989.

The product of its digits is 4199040, while the sum is 56.

The square root of 3965189249 is about 62969.7486814105. The cubic root of 3965189249 is about 1582.7827434835.

The spelling of 3965189249 in words is "three billion, nine hundred sixty-five million, one hundred eighty-nine thousand, two hundred forty-nine".